Display device

ABSTRACT

A display device is provided. The display device has a display region and includes: a spacer disposed in the display region of the display device; and a sensor disposed in the display region of the display device, wherein the sensor does not overlap the spacer in a normal direction of the display device.

BACKGROUND 1. Field

The present disclosure relates to a display device and, moreparticularly, to a display device comprising a sensor.

2. Description of Related Art

With the continuous advancement of technologies related to electronicdevices, all the electronic devices are now developed towardcompactness, thinness, and lightness. For example, thin display devicesare the mainstream display devices on the market.

Nowadays, the display devices are required to have not only the displayfunction but also other functions such as touch or identificationfunctions. In addition, for a purpose that the display devices havehigher display-to-body ratio, outer sensors have to be designed to beembedded into display regions of the display devices. Hence, how tointegrate a sensor into the display device without reducing the accuracyor the resolution of the sensor and also without affecting the functionsof the display device is one issue that should be solved.

SUMMARY

The present disclosure provides a display device having a displayregion, wherein the display device comprises: a spacer disposed in thedisplay region of the display device; and a sensor disposed in thedisplay region of the display device. Herein, the sensor does notoverlap the spacer in a normal direction of the display device.

Other novel features of the disclosure will become more apparent fromthe following detailed description when taken in conjunction with theaccompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a top view of a display device according to Embodiment 1 ofthe present disclosure.

FIG. 2 is a cross-sectional view of a display device according toEmbodiment 1 of the present disclosure.

FIG. 3 is a cross-sectional view of a display device according toEmbodiment 2 of the present disclosure.

FIG. 4 is a cross-sectional view of a display device according toEmbodiment 3 of the present disclosure.

FIG. 5 is a cross-sectional view of a display device according toEmbodiment 4 of the present disclosure.

FIG. 6 is a cross-sectional view of a display device according toEmbodiment 5 of the present disclosure.

FIG. 7 is a cross-sectional view of a display device according toEmbodiment 6 of the present disclosure.

FIG. 8 is a cross-sectional view of a display device according toEmbodiment 7 of the present disclosure.

FIG. 9 is a cross-sectional view of a display device according toEmbodiment 8 of the present disclosure.

FIG. 10 is a cross-sectional view of a display device according toEmbodiment 9 of the present disclosure.

FIG. 11 is a cross-sectional view of a display device according toEmbodiment 10 of the present disclosure.

FIG. 12 is a cross-sectional view of a display device according toEmbodiment 11 of the present disclosure.

FIG. 13 is a cross-sectional view of a display device illustrating asituation that a sensor does not overlap a spacer.

FIG. 14 is a cross-sectional view of a display device illustrating asituation that a sensor overlaps a spacer.

DETAILED DESCRIPTION OF EMBODIMENT

The following embodiments when read with the accompanying drawings aremade to clearly exhibit the above-mentioned and other technicalcontents, features and/or effects of the present disclosure. Through theexposition by means of the specific embodiments, people would furtherunderstand the technical means and effects the present disclosure adoptsto achieve the above-indicated objectives. Moreover, as the contentsdisclosed herein should be readily understood and can be implemented bya person skilled in the art, all equivalent changes or modificationswhich do not depart from the concept of the present disclosure should beencompassed by the appended claims.

Furthermore, the ordinals recited in the specification and the claimssuch as “first”, “second” and so on are intended only to describe theelements claimed and imply or represent neither that the claimedelements have any proceeding ordinals, nor that sequence between oneclaimed element and another claimed element or between steps of amanufacturing method. The use of these ordinals is merely todifferentiate one claimed element having a certain designation fromanother claimed element having the same designation.

Furthermore, the ordinals recited in the specification and the claimssuch as “above”, “over”, or “on” are intended not only directly contactwith the other element, but also intended indirectly contact with theother element. Similarly, the ordinals recited in the specification andthe claims such as “below”, or “under” are intended not only directlycontact with the other element but also intended indirectly contact withthe other element.

In addition, the features in different embodiments of the presentdisclosure can be mixed to form another embodiment.

Embodiment 1

FIG. 1 is a top view of a display device according to the presentembodiment, which shows partial display region of the display device.The display device of the present embodiment has a non-display regionNON-AA and a display region AA, the display region AA comprises: spacers14 disposed in the display region AA; and sensors 2 disposed in thedisplay region AA. Herein, plural sensors 2 are disposed in one part ofthe display region AA (near to the bottom side of FIG. 1). However, thedispositions of the plural sensors 2 are not limited to that shown inFIG. 1. In another embodiment of the present disclosure, the sensors 2can be disposed in more than one part of the display region AA or in thewhole display region AA of the display device. In further anotherembodiment of the present disclosure, the sensors 2 can be disposedrandomly or evenly in the display region AA of the display device.

As shown in FIG. 1, the sensors 2 do not overlap the spacers 14 in anormal direction of the display device. Herein, the normal direction ofthe display device is the direction perpendicular to a surface of asubstrate 111.

FIG. 2 is a cross-sectional view of a display device of the presentembodiment, which is a cross section along the line L1-L1′ indicated inFIG. 1. In FIG. 2, touch electrodes 31, 32 are not shown to simplify thefigure.

As shown in FIG. 2, the display device of the present embodiment is anorganic light emitting diode (OLED) display device. The device of thepresent embodiment comprises: a substrate 111; a driving layer 11disposed on the substrate 111; and a display medium layer 12 disposed onthe driving layer 11; and a spacer 14 disposed on the display mediumlayer 12.

In detail, the display device of the present embodiment comprises: asubstrate 111; a buffer layer 112 disposed on the substrate 111; a firstsemiconductor layer 113 disposed on the buffer layer 112; a gateinsulating layer 114 disposed on the first semiconductor layer 113; afirst gate electrode layer 115 disposed on the gate insulating layer 114and corresponding to the first semiconductor layer 113; an insulatinglayer 117 disposed on the first gate electrode layer 115; a firstsource-drain electrode layer 116 disposed on the insulating layer 117and electrically connected with the first semiconductor layer 113; and apassivation layer 118 disposed on the first source-drain electrode layer116. The first semiconductor layer 113, the first gate electrode layer115, and the first source-drain electrode layer 116 form a transistorTFT. In the present embodiment, the driving layer 11 comprises the firstsemiconductor layer 113, the gate insulating layer 114, the first gateelectrode layer 115, the first source-drain electrode layer 116, theinsulating layer 117, and the passivation layer 118. However, thestructures of the driving layer 11 and the transistor TFT of the presentdisclosure are not limited to those shown in FIG. 2, and can be modifiedaccording to the device requirement. For example, the transistor TFT isa top gate transistor in the present embodiment, but the transistor TFTcan be a bottom gate transistor in another embodiment of the presentdisclosure.

In the present embodiment, when forming the driving layer 11, a sensor 2is simultaneously formed. The sensor 2 of the present disclosure has atransistor structure, which comprises: a second semiconductor layer 211;a second gate electrode layer 212 corresponding to the secondsemiconductor layer 211; and a second source-drain electrode layer 213electrically connected with the second semiconductor layer 211. Hence,in the present embodiment, the sensor 2 is disposed on the substrate 111and adjacent to the transistor TFT. In the present embodiment, thesensor 2 is a top gate transistor. In another embodiment of the presentdisclosure, the sensor 2 can be a bottom gate transistor. In furtheranother embodiment of the present disclosure, the sensor 2 is not atransistor, and can have other structure (for example, a photodiode) aslong as the purpose of signal sensing can be achieved. Examples of thesensor 2 can be a biometric sensor such as a fingerprint sensor, an irissensor, a retina sensor, a facial sensor, a vein sensor, a voice sensor,a motion sensor, a gesture sensor, or a DNA sensor; but the presentdisclosure is not limited thereto.

Herein, the substrate 111 can be a quartz substrate, a glass substrate,a plastic substrate, other flexible substrates or films. When thesubstrate 111 is a plastic substrate, other flexible substrates orfilms, a flexible display device can be obtained. In addition, thematerial for the buffer layer 112 and the gate insulating layer 114 canbe a silicon oxide, a silicon oxynitride, a silicon nitride or acombination thereof. Furthermore, the material for the first gateelectrode layer 115, the first source-drain electrode layer 116, thesecond gate electrode layer 212 and the second source-drain electrodelayer 213 can be metals (such as Cu, Al, Ti, Cr, Mo, or alloy thereof,or a combination of the abovementioned materials) or other electrodematerials. Moreover, the material for the first semiconductor layer 113and the second semiconductor layer 211 respectively can be amorphoussilicon, polysilicon such as low-temperature polysilicon (LIPS) or oxidesemiconductor such as indium gallium zinc oxide (IGZO). However, thepresent disclosure is not limited thereto.

As shown in FIG. 2, a passivation layer 118 is disposed on the firstsource-drain electrode layer 116. The material for the passivation layer118 can be, for example, a silicon oxide, a silicon oxynitride, asilicon nitride, aluminum oxide, resin, polymer, photoresist, or acombination thereof; but the present disclosure is not limited thereto.

Then, a display medium layer 12 is formed on the passivation layer 118.In the present embodiment, the display medium layer 12 could beself-emitting layers, such as organic light emitting diodes. The organiclight emitting diode comprises a first electrode 121, a light emittinglayer 122, and a second electrode 123. The first electrode 121electrically connects with the transistor TFT. A pixel defining layer 13is disposed on the first electrode 121 and has an opening to expose thefirst electrode 121. The light emitting layer 122 is disposed in theopening and electrically connects with the first electrode 121. A secondelectrode 123 is disposed on the pixel defining layer 13 andelectrically connects with the light emitting layer 122 through theopening. The opening of the pixel defining layer 13 defines a lightemitting region E of the OLED. A spacer 14 is disposed on the pixeldefining layer 13. The spacer 14 does not overlap the light emittingregion E in the normal direction of the substrate 111. Herein, the firstelectrode 121 is a reflective electrode, and a material for thereflective electrode can be Ag, Al or other material with highreflective properties. The second electrode 123 is a transparentelectrode, and a material for the transparent electrode can be atransparent conductive oxide such as ITO, IZO, ITZO, IGZO, or AZO.However, the present disclosure is not limited thereto.

In addition, a spacer 14 is disposed on the pixel defining layer 13. Amaterial of the spacer 14 can be resin, polymer, photoresist, or acombination thereof, but the present disclosure is not limited thereto.

As shown in FIG. 1 and FIG. 2, in the display device of the presentembodiment, the sensor 2 does not overlap the spacer 14 in a normaldirection which is the direction vertical to the surface of thesubstrate 111. In particular, the sensor 2 comprises a sensing area S,and the spacer 2 does not overlap the sensing area S in the normaldirection.

If the spacer 14 overlaps the sensor 2, the spacer 14 might affect ordistort the incident light from an upper side of the display device tothe sensor 2, and decrease the resolution of the sensor 2. Thus, in thepresent embodiment, the sensor 2 is designed not to overlap the spacer14 to solve the aforesaid problem.

As shown in FIG. 1, in the present embodiment, the display region AAcomprises plural light emitting regions E, and the sensor 2 does notoverlap the light emitting regions E in the normal direction.Especially, as shown in FIG. 2, in the OLED display device of thepresent embodiment, the display medium layer 12 comprises OLED, whereinthe first electrode 121 comprised in OLED is a reflective electrode, andthe sensor 2 (in particular, the sensing area S) does not overlap thefirst electrode 121 in the normal direction. If the sensor 2 overlapsthe first electrode 121 in the normal direction, the signal will beblocked by the first electrode 121 because the first electrode 121 is areflective electrode.

Embodiment 2

FIG. 3 is a cross-sectional view of a display device according to thepresent embodiment 2. The display device of the present embodiment issimilar to that of Embodiment 1, except that the display device of thepresent embodiment is a liquid crystal display (LCD) device.

As shown in FIG. 3, the driving layer 11 and the sensor 2 of the presentembodiment are similar to those shown in Embodiment 1 and theillustrations thereof are not repeated again.

As shown in FIG. 3, the driving layer 11 is disposed on the substrate111, and a first passivation layer 1181 is disposed on the firstsource-drain electrode layer 116. The display device of the presentembodiment further comprises: a first electrode 121 disposed on thefirst passivation layer 1181; a second passivation layer 1182 disposedon the first electrode 121; a second electrode 123 disposed on thesecond passivation layer 1182; and a third passivation layer 1183disposed on the second electrode 123. In the present embodiment, thesecond electrode 123 electrically connects with the transistor TFT. Inthe present embodiment, the first electrode 121 and the second electrode123 form electrical field, triggering displaying mechanism of a fringefield switching (FFS) LCD device. In another embodiment of the presentdisclosure, the first electrode 121, not the second electrode 123,electrically connects with the transistor TFT. In addition, in thepresent embodiment, a homogenous aligned LCD device is disclosed. Inanother embodiment of the present disclosure, the display device can bea vertical aligned LCD device, wherein the second electrode 123 isdisposed on a counter substrate 411.

Herein, the material for the first passivation layer 1181, the secondpassivation layer 1182 and the third passivation layer 1183 respectivelycan be, for example, a silicon oxide, a silicon oxynitride, a siliconnitride, aluminum oxide, resin, polymer, photoresist, or a combinationthereof. In addition, the first electrode 121 and the second electrode123 are transparent electrodes, and a material for the transparentelectrode can be a transparent conductive oxide such as ITO, IZO, ITZO,IGZO, or AZO. However, the present disclosure is not limited thereto.

As shown in FIG. 3, the display device of the present embodiment furthercomprises: a counter substrate 411 having a surface 411 a facing thesubstrate 111; a first light shielding layer 412 disposed on the surface411 a of the counter substrate 411, wherein the first light shieldinglayer 412 has a plurality of openings; a color filter layer 413 disposedin the openings of the first light shielding layer 412; and an overcoatlayer 414 disposed on the color filter layer 413. Each of the openingsof the first light shielding layer 412 defines a light emitting regionE. The first light shielding layer 412 cat be a black matrix, and thematerial for the overcoat layer 414 can be resin, polymer, photoresist,or a combination thereof.

In addition, a first alignment layer 151 is disposed on the the thirdpassivation layer 1183, a second alignment layer 152 is disposed on theovercoat layer 414, and the spacer 14 and the display medium layer 12are disposed between the first alignment layer 151 and the secondalignment layer 152. Herein, the display medium layer 12 is a liquidcrystal layer.

Similar to Embodiment 1, the sensor 2 in the display device of thepresent embodiment does not overlap the light emitting region E in thenormal direction of the substrate 111. The spacer 14 does not overlapthe light emitting region E in the normal direction of the substrate111. Therefore, the aperture ratio of the display device may not beaffected by the sensor 2. In addition, since the sensor 2 is disposedunder the first light shielding layer 412, the sensor 2 can only receivenear IR or IR light signal, while visible light are shielded by thefirst light shielding layer 412.

Embodiment 3

FIG. 4 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that of Embodiment 2, except for the sensor position. In thepresent embodiment, the sensor 2 in the display device overlaps thelight emitting region E in the normal direction of the substrate 111.Therefore, the sensor 2 could receive visible light, near IR or IR lightsignal. In one embodiment, the sensor 2 can be disposed under the colorfilter layer 413 with red or green resin, but the present disclosure isnot limited thereto.

Embodiment 4

FIG. 5 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that of Embodiment 2, except for the following difference.

In the present embodiment, the first light shielding layer 412 has anopening 4121. The sensor 2 overlaps the opening 4121 but the spacer 14does not overlap the opening 4121 in the normal direction. In addition,the sensor 2 comprises a sensing area S, the opening 4121 overlaps thesensing area S, and the spacer 14 does not overlap the sensing area S inthe normal direction. When the first light shielding layer 412 has theopening 4121, visible light can reach to the sensor 2. The sensor 2could receive visible light, near IR or IR light signal.

In addition, the structure of the sensor 2 in Embodiment 2 is atransistor with a top gate structure. In the present embodiment, thestructure of the sensor 2 is a transistor with a bottom gate structure.Furthermore, the display device of the present embodiment furthercomprises a second light shielding layer 214 disposed between the sensor2 and the substrate 111, wherein the second light shielding layer 214overlaps the opening 4121 in the normal direction to shield the lightemitted from the backlight passing through the opening 4121 andproducing a light dot.

Embodiment 5

FIG. 6 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that of Embodiment 2, except for the following differences.As shown in FIG. 6, the driving layer 11 and the sensor 2 of the presentembodiment are similar to those shown in Embodiment 2 and theillustrations thereof are not repeated again.

As shown in FIG. 6, a first passivation layer 1181 is disposed on thefirst source-drain electrode layer 116. A color filter layer 413 isdisposed on the first passivation layer 1181. A passivation layer 119 isdisposed on the color filter layer 413. A first electrode 121 isdisposed on the passivation layer 119. A second passivation layer 1182is disposed on the first electrode 121. A second electrode 123 isdisposed on the second passivation layer 1182 and electrically connectswith the transistor TFT. Herein, the material for the passivation layer119 can be, for example, resin, polymer, photoresist, or a combinationthereat but the present disclosure is not limited thereto.

Hence, in the present embodiment, the color filter layer 413 is notdisposed on the counter substrate 411, but is disposed on the substrate111 with transistor TFT formed thereon. Therefore, the display device ofthe present embodiment is a color filter on array (COA) LCD device.

Embodiment 6

FIG. 7 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that of Embodiment 5, except for the following differences.In the present embodiment, a first light shielding layer 412 is disposedbetween the first passivation layer 1181 and the passivation layer 119.Hence, the first light shielding layer 412 is not disposed on thecounter substrate 411, but is disposed on the substrate 111 withtransistor TFT formed thereon. Therefore, the display device of thepresent embodiment is a black matrix on array (BOA) LCD device.

In the aforementioned embodiments, only the relative positions betweenthe spacers and the sensors are disclosed. In the following embodiments,the relative positions between the sensors and the touch electrodes aredisclosed.

Embodiment 7

FIG. 8 is a cross-sectional view of a display device according to thepresent embodiment, which is a cross section along the line L2-L2′indicated in FIG. 1. The OLED display device shown in Embodiment 1 isillustrated in the present embodiment.

In the present embodiment, an encapsulating layer 17 is disposed on thedisplay medium layer 12 and the pixel defining layer 13. A material ofthe encapsulating layer 17 can be resin, polymer, photoresist, or acombination thereof, but the present disclosure is not limited thereto.

As shown in FIG. 8, the display device of the present embodiment furthercomprises: a first touch electrode 31 disposed on the encapsulatinglayer 17; a first insulating layer 33 disposed on the first touchelectrode 31; a second touch electrode 32 disposed on the firstinsulating layer 33; and a second insulating layer 34 disposed on thesecond touch electrode 32. Herein, the material for the first insulatinglayer 33 and the second insulating layer 34 can be, for example, asilicon oxide, a silicon oxynitride, a silicon nitride, aluminum oxide,resin, polymer, photoresist, or a combination thereof; but the presentdisclosure is not limited thereto. The material for the first touchelectrode 31 and the second touch electrode 32 can be a metal(especially, an opaque conducting metal), such as Cu or Ag; but thepresent disclosure is not limited thereto. Herein, the first touchelectrode 31 can drive Tx touch signal and the second touch electrode 32can sense Rx touch signal; and vise versa.

As shown in FIG. 1 and FIG. 8, the first touch electrode 31 and thesecond touch electrode 32 are disposed in the display region AA of thedisplay device. When the material of the first touch electrode 31 andthe second touch electrode 32 is made of metal materials, the incidentlight from an upper side of the display device may be shielded by thefirst touch electrode 31 and the second touch electrode 32. The sensors2 may be disposed to avoid overlapping the first touch electrode 31 andthe second touch electrode 32 in the normal direction of the substrate111 to improve sensing resolution.

In addition, as shown in FIG. 2 and FIG. 8, the driving layer 11comprises a transistor TFT, and the sensor 2 is disposed on thesubstrate 111 and adjacent to the transistor TFT.

Embodiment 8

FIG. 9 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that shown in Embodiment 7, except for the sensor position.

In the present embodiment, the display device further comprises a touchsensor layer 3 disposed on the display medium layer 12, wherein thetouch sensor layer 3 comprises the first touch electrode 31 and thesecond touch electrode 32, and the sensor 2 is disposed on the displaymedium layer 12 and adjacent to the first touch electrode 31. In anotherembodiment of the present disclosure, the sensor 2 can be adjacent tothe second touch electrode 32.

Embodiment 9

FIG. 10 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that shown in Embodiment 7, except for the sensor position.

In the present embodiment, the display device further comprises: a touchsensor layer 3 disposed on the display medium layer 12; and a protectionsubstrate 6 disposed on the touch sensor layer 3, wherein the sensor 2is disposed between the touch sensor layer 3 and the protectionsubstrate 6. Herein, the protection substrate 6 can be a cover glass ora polarizer, but the present disclosure is not limited thereto.

In particular, in the present embodiment, the display device furthercomprises: a functional layer 5 disposed between the touch sensor layer3 and the protection substrate 6, wherein the sensor 2 is disposed inthe functional layer 5. Examples of the functional layer 5 may comprisean optical clear adhesive, a tape or other adhesion material, apolarizer, an anti-glare film, etc., but the present disclosure is notlimited thereto.

Embodiment 10

FIG. 11 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that shown in Embodiment 7 except for the sensor position.

In the present embodiment, the sensor 2 is disposed below the substrate111. In other words, the sensor 2 is disposed on a surface of thesubstrate 111 which is opposite to another surface of the substrate 111adjacent to the display medium layer 12.

In Embodiments 7 to 10 shown in FIG. 8 to FIG. 11, the sensor 2 does notoverlap the first touch electrode 31, the second touch electrode 32 andthe light emitting regions E.

Embodiment 11

FIG. 12 is a cross-sectional view of a display device according to thepresent embodiment. The display device of the present embodiment issimilar to that shown in Embodiment 7, except for the types of the touchelectrodes.

In the present embodiment, the display device further comprises a firsttouch electrode 31 and a second touch electrode 32 disposed in thedisplay region AA of the display device, wherein the material of thefirst touch electrode 31 and the second touch electrode 32 can be atransparent conductive oxide such as ITO, IZO, ITZO, IGZO, or AZO.However, the present disclosure is not limited thereto. Herein, thefirst touch electrode 31 can drive Tx touch signal and the second touchelectrode 32 can sense Rx touch signal; and vise versa.

Because the first touch electrode 31 and the second touch electrode 32made by the transparent conductive oxide have high transparency, thesensors 2 can overlap the first touch electrode 31 and the second touchelectrode 32 in the normal direction of the display device.

In the aforementioned embodiments, the spacer 14 has a regular shape.However, the present disclosure is not limited thereto. In otherembodiments of the present disclosure, the spacer 14 may have a taperedprofile that different portions have different thicknesses.

Hereinafter, FIG. 13 and FIG. 14 are used to illustrate the situationhow to define the spacer with the tapered profile overlapping or notoverlapping the sensor.

FIG. 13 is a cross-sectional view of a display device illustrating asituation that a sensor does not overlap a spacer, and FIG. 14 is across-sectional view of a display device illustrating a situation that asensor overlaps a spacer. The structures of the display devices shown inFIG. 13 and FIG. 14 are similar to that shown in FIG. 3, and are notrepeated again.

When the spacer has the tapered profile, the spacer can be defined tohave a main portion 14 a and a lower portion 14 b, wherein the lowerportion 14 b has a height H1 which is 15% or less of the overallthickness H of the spacer 14 (H1≤15%×H), and the rest of the spacer 14is the main portion 14 a.

The spacer 14 used in the present disclosure may be transparent. Thelower portion 14 b of the spacer 14 still has good transparency. But themain portion 14 a of the spacer 14, since having thicker thickness thanthe lower portion 14 b the main portion 14 a is becomingsemi-transparent. If the lower portion 14 b of the spacer 14 overlapsthe sensor 2 (especially the sensing area S) as shown in FIG. 13, thelower portion 14 b may not significantly affect the incident light fromthe upper side of the display device, and the sensing resolution is notaltered. However, if the sensor 2 overlaps the main portion 14 a of thespacer 14 as shown in FIG. 14, the incident light is mostly distorted oraltered, so the resolution of the sensor 2 is affected, resulting inblurry image. Hence, in the present disclosure, the sensor 2 has to bedesigned not overlapping the main portion 14 a of the spacer 14.

In the aforementioned embodiments, only the (SLED display device and theLCD device are disclosed, but the present disclosure is not limitedthereto. In other embodiments of the present disclosure, the displaymedium may comprise quantum dots (QDs), fluorescence molecules,phosphors, normal inorganic light-emitting diodes (normal LEDs, in whichthe size of the chip contained therein is ranged from 300 μm to 10 mm),mini inorganic light-emitting, diodes (mini LEDs, in which the size ofthe chip contained therein is ranged from 100 μm to 300 μm), microinorganic light-emitting diodes (micro LEDs, in which the size of thechip contained therein is ranged from 1 μm to 100 μm), or other displaymedium; but the present disclosure is not limited thereto.

Furthermore, in the aforementioned embodiments, only the on-cell touchdisplay devices are disclosed, but the present disclosure is not limitedthereto. In other embodiments of the present disclosure, the displaydevice can be an in-cell touch display device or an out-cell touchdisplay device depending on the disposition of the touch electrodes.

Meanwhile, a display device or touch display device made as described inany of the embodiments of the present disclosure as described previouslymay be applied to any electronic devices known in the art that need adisplay screen, such as displays, mobile phones, laptops, video cameras,still cameras, music players, mobile navigators, TV sets, and otherelectronic devices that display images.

Although the present disclosure has been explained in relation to itsembodiment, it is to be understood that many other possiblemodifications and variations can be made without departing from thespirit and scope of the disclosure as hereinafter claimed.

What is claimed is:
 1. A display device having a display region,comprising: a spacer disposed in the display region of the displaydevice; and a sensor disposed in the display region of the displaydevice, wherein the sensor does not overlap the spacer in a normaldirection of the display device.
 2. The display device of claim 1,further comprising a touch electrode disposed in the display region ofthe display device, wherein the sensor does not overlap the touchelectrode in the normal direction.
 3. The display device of claim 2,wherein a material of the touch electrode is a metal.
 4. The displaydevice of claim 1, further comprising a touch electrode disposed in thedisplay region of the display device, wherein the sensor overlaps thetouch electrode in the normal direction.
 5. The display device of claim4, wherein a material of the touch electrode is a transparent conductiveoxide.
 6. The display device of claim 1, wherein the sensor comprises asensing area, and the spacer does not overlap the sensing area in thenormal direction.
 7. The display device of claim 1, further comprising afirst light shielding layer disposed in the display region of thedisplay device, wherein the first light shielding layer has an opening,and the spacer does not overlap the opening in the normal direction. 8.The display device of claim 7, wherein the sensor overlaps the openingin the normal direction.
 9. The display device of claim 7, furthercomprising a second light shielding layer disposed under the sensor,wherein the second light shielding layer overlaps the opening in the noranal direction.
 10. The display device of claim 1, wherein the displayregion comprises plural light emitting regions, and the sensor does notoverlap the light emitting regions in the normal direction.
 11. Thedisplay device of claim 10, further comprising a display medium layer,wherein the display medium layer comprises an organic light emittingdiode comprising a reflective electrode, and the sensor does not overlapthe reflective electrode in the normal direction.
 12. The display deviceof claim 10, wherein the spacer does not overlap the light emittingregions in the normal direction.
 13. The display device of claim 1,wherein the display region comprises plural light emitting regions, andthe sensor overlaps the light emitting regions in the normal direction.14. The display device of claim 1, wherein the spacer comprises a mainportion and a lower portion, and the main portion does not overlap thesensor.
 15. The display device of claim 1, further comprising: asubstrate; a driving layer disposed on the substrate; a display mediumlayer disposed on the driving layer; and the spacer disposed on thedisplay medium layer.
 16. The display device of claim 15, wherein thedriving layer comprises a transistor, and the sensor is disposed on thesubstrate and adjacent to the transistor.
 17. The display device ofclaim 15, further comprising a touch sensor layer disposed on thedisplay medium layer, wherein the touch sensor layer comprises a touchelectrode, and the sensor is disposed on the display medium layer andadjacent to the touch electrode.
 18. The display device of claim 15,further comprising a touch sensor layer disposed on the display mediumlayer and a protection substrate disposed on the touch sensor layer,wherein the sensor is disposed between the touch sensor layer and theprotection substrate.
 19. The display device of claim 18, furthercomprising a functional layer disposed between the touch sensor layerand the protection substrate, wherein the sensor is disposed in thefunctional layer.
 20. The display device of claim 15, wherein the sensoris disposed below the substrate.